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Finding the Fourth Proportional to 357,239.25, 535,858.87 and 120,748

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Solution

The fourth proportional to 357,239.25, 535,858.87 and 120,748 is: 181,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,239.25 : 535,858.87 = 120,748 : x
  2. Step 2: Convert to fraction form
    357,239.25/535,858.87 = 120,748/x
  3. Step 3: Cross multiply
    357,239.25x = 535,858.87 × 120,748
  4. Step 4: Simplify right side
    357,239.25x = 64,703,886,834.76
  5. Step 5: Solve for x
    x = 64,703,886,834.76/357,239.25
  6. Step 6: Final answer
    x = 181,122.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.